Back in August, there were rumors circulating that the couple wanted to start a footwear line, but now they're thinking about a full blow clothing line.

A Kimye source reveals:

"Kanye and Kim have figured out that if they combine their names it could be big business. They’ve both got massive fanbases who will buy their gear. It’s also a sign that they’re in the relationship for the long haul and that they think it’s a romantic way to seal their relationship"

Yes, because nothing says 'I love you' like a signed contract that sets out the terms, conditions and who gets how much.